公开(公告)号：US4662820A

公开(公告)日：1987-05-05

申请号：US752860

申请日：1985-07-08

申请人： Tetsuo Sasada ,  Takeshi Sato ,  Haruo Urushidani ,  Katsukuni Hisano ,  Ryoichi Kaneko ,  Kazuo Ikeuchi ,  Kunio Tsuji

发明人： Tetsuo Sasada ,  Takeshi Sato ,  Haruo Urushidani ,  Katsukuni Hisano ,  Ryoichi Kaneko ,  Kazuo Ikeuchi ,  Kunio Tsuji

IPC分类号： F01D9/02 ,  F01D11/08 ,  F01D11/02

CPC分类号： F04D29/161 ,  F01D11/08

摘要： A stage structure of an axial turbine includes a stationary inner ring, a stationary outer wall, a row of stationary blades mounted on the stationary inner ring and outer wall, a row of moving blades, and a shroud ring mounted on the tips of the moving blades. An annular solid substance, disposed immediately downstream of an axial gap formed between an axial end of the shroud ring and surface of the outer wall axially facing the axial end of the shroud ring, reduces an expansion space provided immediately downstream of the axial gap, whereby circulation of an ejection flow from a main stream through the axial gap is reduced so that the turbine stage efficiency is improved. The annular solid substance may be a ring fixed to the stationary outer wall, a protrusion or a cylinder formed by a portion of the outer wall.

摘要翻译： 轴流式涡轮机的级结构包括固定内环，固定外壁，安装在固定内环和外壁上的一排固定叶片，一排活动叶片和安装在移动的尖端上的护罩环 刀片。 设置在形成在护罩环的轴向端部和轴向面向护罩环的轴向端部的外壁的表面之间的轴向间隙的紧邻下游的环形固体物质减小了紧邻轴向间隙的下游的膨胀空间，由此 从主流通过轴向间隙的喷射流的循环减少，从而提高了涡轮级的效率。 环状固体物质可以是固定在静止的外壁上的环，由外壁的一部分形成的突起或圆筒。

公开(公告)号：US4401411A

公开(公告)日：1983-08-30

申请号：US270599

申请日：1981-06-04

申请人： Katsukuni Hisano ,  Kazuo Ikeuchi ,  Makoto Nishimura ,  Hazime Sibaoka ,  Kiyoshi Namura ,  Akira Isida ,  Katsumi Oyabu

发明人： Katsukuni Hisano ,  Kazuo Ikeuchi ,  Makoto Nishimura ,  Hazime Sibaoka ,  Kiyoshi Namura ,  Akira Isida ,  Katsumi Oyabu

IPC分类号： F01D5/22 ,  F01D25/04

CPC分类号： F01D5/225 ,  Y10S416/50

摘要： A device for connecting the turbine blades of a turbine having a plate-shaped member provided at the radially outer end of each turbine blade and extended substantially at a right angle to the longitudinal plane of the turbine blade. The plate-shaped member is projected from the leading and trailing edges of the turbine blade, and is provided with through bores formed in each projected portion. Connecting members having cylindrical pins or the like projections are disposed between two adjacent turbine blades in such a manner that the projections are rotatably received by respective through bores. Namely, one of the connecting members is connected to the plate-shaped member of the leading edge of the turbine blade while the other connecting member is connected to the plate-shaped member of the trailing edge of the preceding adjacent turbine blade. The connecting members are disposed such that they partially underlie the plate-shaped members of the adjacent turbine blades and that they make contact with each other during the running of the turbine thereby to restrict the untwisting of the turbine blades while attaining a vibration damping effect.

摘要翻译： 一种用于连接涡轮机的涡轮叶片的装置，其具有设置在每个涡轮机叶片的径向外端处并基本上与涡轮叶片的纵向平面成直角延伸的板状构件。 板状构件从涡轮叶片的前缘和后缘突出，并且在每个突出部分中设置有通孔。 具有圆柱形销或类似突起的连接构件以这样的方式设置在两个相邻的涡轮叶片之间，使得突起可旋转地被相应的通孔接收。 也就是说，其中一个连接构件连接到涡轮叶片的前缘的板状构件，而另一个连接构件连接到前一相邻涡轮叶片的后缘的板状构件。 连接构件被布置成使得它们部分地位于相邻涡轮叶片的板状构件的下面，并且在涡轮机的运行期间它们彼此接触，从而限制涡轮叶片的解捻，同时获得减振效果。

公开(公告)号：US4478082A

公开(公告)日：1984-10-23

申请号：US408949

申请日：1982-08-17

申请人： Ichiya Sato ,  Takao Yoneyama ,  Tsuguaki Koga ,  Kazuo Ikeuchi ,  Katsukuni Hisano

发明人： Ichiya Sato ,  Takao Yoneyama ,  Tsuguaki Koga ,  Kazuo Ikeuchi ,  Katsukuni Hisano

IPC分类号： G01M13/04 ,  G01H1/00 ,  G01H1/04 ,  G01H17/00 ,  G01M99/00 ,  G01N29/12 ,  G01M13/00

CPC分类号： G01N29/12 ,  G01H1/003 ,  G01N2291/014 ,  G01N2291/101 ,  G01N2291/2693

摘要： A method and apparatus for detecting the occurrence of rubbing in a rotary machine, in which at least one acoustic sensor is mounted on at least the rotor part or the stator part of the rotary machine, and the output signal from the acoustic sensor is detected and then filtered to extract a frequency component having a frequency substantially equal to the rotational frequency of the rotary machine, so as to detect the occurrence of rubbing in the rotary machine as early as possible and also to locate the source of the rubbing. Even when the occurrence of abnormal metal-to-metal contact at a bearing of the rotary machine is detected, it is discriminated from rubbing so that the occurrence of the rubbing can be reliably detected.

摘要翻译： 一种在旋转机器中检测摩擦发生的方法和装置，其中至少一个声传感器安装在至少旋转机器的转子部分或定子部分上，并且检测来自声传感器的输出信号， 然后过滤以提取频率基本上等于旋转机的旋转频率的频率分量，以便尽可能早地检测旋转机器中的摩擦的发生并且还可以定位摩擦源。 即使检测到在旋转机械的轴承处发生异常金属对金属的接触，也可以将其与摩擦进行区别，从而能够可靠地检测摩擦的发生。

公开(公告)号：US3990813A

公开(公告)日：1976-11-09

申请号：US527879

申请日：1974-11-27

申请人： Tetsu Imai ,  Kazuo Ikeuchi

发明人： Tetsu Imai ,  Kazuo Ikeuchi

IPC分类号： F01D5/22

CPC分类号： F01D5/22

摘要： The annular array of radially extending blades on the rotor of a rotary fluid machine are tied together at generally their mid portions by interlocking separate tying members and projection pairs, wherein each projection pair includes facing projections on adjacent blades of the array. The tying members and projections have mating bearing surfaces that will provide a tangential force as a result of wedging produced by the centrifugal force acting upon the tying members during rotation of the rotor at rated speed, without restraining individual twisting of the blades about their radial extent.

摘要翻译： 旋转流体机械的转子上的径向延伸的叶片的环形阵列通常通过互锁的单独的捆扎构件和突起对而被连接在一起，其中每个突起对包括在阵列的相邻叶片上的面对突起。 绑定构件和突起具有配合的轴承表面，其将由于在转子以额定速度旋转期间作用在结合构件上的离心力产生的楔形结果而提供切向力，而不会限制叶片围绕其径向范围的单独扭转 。

公开(公告)号：US07429164B2

公开(公告)日：2008-09-30

申请号：US10524834

申请日：2002-09-02

申请人： Yutaka Yamashita ,  Kiyoshi Namura ,  Eiji Saitou ,  Masakazu Takasumi ,  Masato Machida ,  Hideo Yoda ,  Kazuo Ikeuchi

发明人： Yutaka Yamashita ,  Kiyoshi Namura ,  Eiji Saitou ,  Masakazu Takasumi ,  Masato Machida ,  Hideo Yoda ,  Kazuo Ikeuchi

IPC分类号： F01D5/26

CPC分类号： F01D5/3046 ,  F01D5/225 ,  F05D2250/70 ,  F05D2260/36

摘要： A turbine moving blade has a blade portion extending from the basal portion to the tip of the moving blade. The blade root portion is formed at the basal portion of the blade portion and engaged with a corresponding disk groove of a turbine rotor on a one-by-one basis, and the integral cover is formed at the tip of the blade portion integrally with the blade portion. The integral cover includes at least a pair of pressure and suction sloped surfaces inclined relative to the direction of the rotational axis of a turbine so as to restrain the elastic restoring force of the moving blade torsionally deformed at the time of installation of the moving blade by bringing the integral covers of mutually adjacent blades into contact.

摘要翻译： 涡轮机动叶片具有从基部向移动叶片的尖端延伸的叶片部分。 叶片根部形成在叶片部分的基部并且一个接一个地与涡轮转子的相应的盘槽接合，并且整体盖与刀片部分的顶端一体地形成 刀片部分。 一体式的盖子包括至少一对相对于涡轮的旋转轴线的方向倾斜的压力和抽吸倾斜表面，以便限制在安装动叶片时扭转变形的动叶片的弹性恢复力 使相邻叶片的整体盖接触。

公开(公告)号：US06846160B2

公开(公告)日：2005-01-25

申请号：US10436984

申请日：2003-05-14

申请人： Eiji Saito ,  Kiyoshi Namura ,  Yutaka Yamashita ,  Masakazu Takasumi ,  Yoshiaki Yamazaki ,  Yoshio Shikano ,  Kazuo Ikeuchi ,  Masumi Katayose

发明人： Eiji Saito ,  Kiyoshi Namura ,  Yutaka Yamashita ,  Masakazu Takasumi ,  Yoshiaki Yamazaki ,  Yoshio Shikano ,  Kazuo Ikeuchi ,  Masumi Katayose

IPC分类号： F01D5/14 ,  F01D5/22

CPC分类号： F01D5/141 ,  F01D5/225 ,  F05D2240/301

摘要： The present invention relates to a turbine bucket to be provided at the low pressure last stage of a steam turbine and an object of the present invention is to provide a turbine bucket in which the adjacent blades are connected without using a connecting member at a blade intermediate portion. In order to achieve the object of the present invention, a turbine bucket of the present invention is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, and when assuming two axial directions in a blade section of the bucket on horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at predetermined heights from the blade root portion of the turbine bucket are formed in a range of ±0.3 mm from respective points defining blade section configurations as shown respectively in chart 1, chart 4, chart 7, chart 10, chart 13, chart 16 and chart 18.

摘要翻译： 本发明涉及一种在蒸汽轮机的低压最后阶段提供的涡轮机桶，其目的在于提供一种涡轮机铲斗，其中相邻的叶片在叶片中间不使用连接构件而连接 一部分。 为了实现本发明的目的，本发明的涡轮机叶片以这样的方式形成，即叶片截面形状从叶片根部扭转到叶片前端侧，并且当在 在水平面上的铲斗的叶片部分，并且沿着一个轴向作为X轴，另一个轴向垂直于X轴作为Y轴，从涡轮叶片的叶片根部预定高度的叶片部分形成在 分别如图1，图4，图表7，图表10，图表13，图表16和图表18所示的各个点的±0.3 mm。

公开(公告)号：US4406169A

公开(公告)日：1983-09-27

申请号：US258593

申请日：1981-04-29

申请人： Kazuo Ikeuchi ,  Tsuguaki Koga ,  Tomoaki Inoue ,  Katsumi Oyabu

发明人： Kazuo Ikeuchi ,  Tsuguaki Koga ,  Tomoaki Inoue ,  Katsumi Oyabu

IPC分类号： F16C17/24 ,  G01M13/04 ,  G01M99/00 ,  G07C3/00 ,  G01L5/00

CPC分类号： G01M13/04 ,  F16C17/24 ,  G07C3/00 ,  F16C17/02

摘要： A method of and a system for monitoring the conditions of a journal bearing having a bearing surface for supporting a rotatable shaft through an oil film. Detectors detect the speed of rotation of the shaft and the pressure of the oil film. The load on the journal bearing is calculated based on the rotational speed of the shaft and the pressure of the oil film.

摘要翻译： 一种用于监测轴承轴承的状态的方法和系统，该轴颈轴承具有用于通过油膜支撑可旋转轴的支承表面。 检测器检测轴的旋转速度和油膜的压力。 基于轴的旋转速度和油膜的压力计算轴颈轴承上的负载。

公开(公告)号：US20060127221A1

公开(公告)日：2006-06-15

申请号：US10524834

申请日：2002-09-02

申请人： Yutaka Yamashita ,  Kiyoshi Namura ,  Eiji Saitou ,  Masakazu Takasumi ,  Masato Machida ,  Hideo Yoda ,  Kazuo Ikeuchi

发明人： Yutaka Yamashita ,  Kiyoshi Namura ,  Eiji Saitou ,  Masakazu Takasumi ,  Masato Machida ,  Hideo Yoda ,  Kazuo Ikeuchi

IPC分类号： F01D5/30

CPC分类号： F01D5/3046 ,  F01D5/225 ,  F05D2250/70 ,  F05D2260/36

摘要： A turbine moving blade has a blade portion extending from the basal portion to the tip of the moving blade. The blade root portion is formed at the basal portion of the blade portion and engaged with a corresponding disk groove of a turbine rotor on a one-by-one basis, and the integral cover is formed at the tip of the blade portion integrally with the blade portion. The integral cover includes at least a pair of pressure and suction sloped surfaces inclined relative to the direction of the rotational axis of a turbine so as to restrain the elastic restoring force of the moving blade torsionally deformed at the time of installation of the moving blade by bringing the integral covers of mutually adjacent blades into contact.

摘要翻译： 涡轮机动叶片具有从基部向移动叶片的尖端延伸的叶片部分。 叶片根部形成在叶片部分的基部并且一个接一个地与涡轮转子的相应的盘槽接合，并且整体盖与刀片部分的顶端一体地形成 刀片部分。 一体式的盖子包括至少一对相对于涡轮的旋转轴线的方向倾斜的压力和抽吸倾斜表面，以便限制在安装动叶片时扭转变形的动叶片的弹性恢复力 使相邻叶片的整体盖接触。

公开(公告)号：US5498136A

公开(公告)日：1996-03-12

申请号：US307463

申请日：1994-09-19

申请人： Kiyoshi Namura ,  Eiji Saito ,  Masakazu Takasumi ,  Kazuo Ikeuchi

发明人： Kiyoshi Namura ,  Eiji Saito ,  Masakazu Takasumi ,  Kazuo Ikeuchi

IPC分类号： F01D5/10 ,  F01D5/22 ,  F01D5/34 ,  F01D5/24

CPC分类号： F01D5/225 ,  F05D2200/24

摘要： The total number (M) of plural blades of a blade apparatus is selected so as not to be a prime number and not to be a power multiplier of a prime number. Plural blades are divided into at least a first blade group in which one blade group has the blades of a first integer number (N.sub.1) and a second blade group in which one blade group has blades of a second integer number (N.sub.2). Each of the first integer number (N.sub.1) and the second integer number (N.sub.2) have no common divisor except 1. The total number (M) of plural blades is the product of the first integer number (N.sub.1) and the second integer number (N.sub.2). The blades of the first integer number (N.sub.1) blade group are connected by a first stage connecting member and the blades of the second integer number (N.sub.2) blade group are connected by a second stage connecting member.

摘要翻译： 刀片装置的多个叶片的总数（M）被选择为不是素数，而不是素数的幂乘。 多个叶片被分成至少第一叶片组，其中一个叶片组具有第一整数（N1）的叶片和第二叶片组，其中一个叶片组具有第二整数（N 2）的叶片。 除了1以外，第一整数（N1）和第二整数（N 2）中的每一个都不具有公约数。多个叶片的总数（M）是第一整数（N1）和第二整数（ N2）。 第一整数（N1）叶片组的叶片由第一级连接构件连接，第二整数（N 2）叶片组的叶片通过第二级连接构件连接。

公开(公告)号：US06579066B1

公开(公告)日：2003-06-17

申请号：US09958604

申请日：2001-10-12

申请人： Eiji Saito ,  Kiyoshi Namura ,  Yutaka Yamashita ,  Masakazu Takasumi ,  Yoshiaki Yamazaki ,  Yoshio Shikano ,  Kazuo Ikeuchi ,  Masumi Katayose

发明人： Eiji Saito ,  Kiyoshi Namura ,  Yutaka Yamashita ,  Masakazu Takasumi ,  Yoshiaki Yamazaki ,  Yoshio Shikano ,  Kazuo Ikeuchi ,  Masumi Katayose

IPC分类号： F01D512

CPC分类号： F01D5/3023 ,  F01D5/141 ,  F01D5/225 ,  F05D2240/301 ,  Y10S416/02 ,  Y10S416/05

摘要： The present invention is a turbine bucket for at the low pressure last stage of a steam turbine and in which the adjacent blades are connected without using a connecting member at a blade intermediate portion. A turbine bucket of the present invention is formed that the blade sectional configuration is twisted from a blade root portion to a blade tip side, and when assuming two axial directions in a blade section of the bucket on horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at predetermined heights from the blade root portion of the turbine bucket are formed in a range of ±0.3 mm from respective points defining blade section configurations.

摘要翻译： 本发明是一种用于在蒸汽轮机的低压最后阶段的涡轮机桶，其中相邻的叶片在叶片中间部分不使用连接构件而连接。 本发明的涡轮机叶片形成为叶片截面形状从叶片根部扭转到叶片前端侧，并且当在水平面上在铲斗的叶片部分中假定两个轴向并且沿着一个轴向作为X时 并且与X轴垂直的另一个轴向为Y轴，来自涡轮叶片的叶片根部的预定高度的叶片部分形成在限定叶片部分构造的各个点的±0.3mm的范围内。